<!doctype html>
<html>
    <head>
        <meta charset="utf-8">
        <title>Map3D - ECHARTS-GL</title>
        <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
        <meta name="apple-mobile-web-app-capable" content="yes"> <!-- Fullscreen Landscape on iOS -->
        <link rel="stylesheet" href="./common.css">
    </head>
    <body>
        <div id="main"></div>
        <script src="../node_modules/echarts/dist/echarts.js"></script>
        <script src="../node_modules/echarts/map/js/world.js"></script>
        <script src="../dist/echarts-gl.js"></script>
        <script src="lib/jquery.min.js"></script>

        <script src="js/exportGL2OBJ.js"></script>
        <script src="lib/download.js"></script>
        <script src="js/commonUI.js"></script>
        <script>
            var chart = echarts.init(document.getElementById('main'));

            $.getJSON('data/world-population.json', function (data) {

                var max = -Infinity;
                var min = Infinity;
                data.forEach(function (item) {
                    max = Math.max(Math.log(item.value), max);
                    min = Math.min(Math.log(item.value), min);
                });

                var regionData = data.map(function (item) {
                    return {
                        name: item.name,
                        // value: item[1]
                        height: (Math.log(item.value) - min) / (max - min) * 3
                    }
                })

                chart.setOption({
                    toolbox: {
                        feature: {
                            myExportObj: {
                                title: 'Export OBJ',
                                icon: 'M4.7,22.9L29.3,45.5L54.7,23.4M4.6,43.6L4.6,58L53.8,58L53.8,43.6M29.2,45.1L29.2,0',
                                onclick: function () {
                                    var res = echarts.exportGL2OBJ(chart, {
                                        mainType: 'series',
                                        subType: 'map3D',
                                        index: 0
                                    }, {
                                        mtllib: 'geo3D'
                                    });
                                    download(res.obj, 'geo3D.obj', 'text/plain');
                                    download(res.mtl, 'geo3D.mtl', 'text/plain');
                                    res.textures.forEach(function (texture) {
                                        download(texture.data, texture.file, 'image/png');
                                    });
                                }
                            }
                        }
                    },
                    backgroundColor: '#cdcfd5',
                    // visualMap: {
                    //     min: 0,
                    //     max: 15,
                    //     realtime: true,
                    //     calculable : true,
                    //     inRange: {
                    //         color: ['#313695', '#4575b4', '#74add1', '#abd9e9', '#e0f3f8', '#ffffbf', '#fee090', '#fdae61', '#f46d43', '#d73027', '#a50026']
                    //     }
                    // },
                    series: [{
                        type: 'map3D',
                        map: 'world',
                        shading: 'lambert',
                        realisticMaterial: {
                            roughness: 0.2,
                            metalness: 0
                        },
                        postEffect: {
                            enable: true,
                            SSAO: {
                                enable: true,
                                radius: 2,
                                intensity: 1
                            }
                        },
                        groundPlane: {
                            show: true
                        },
                        light: {
                            main: {
                                intensity: 2,
                                shadow: true,
                                shadowQuality: 'high',
                                alpha: 30
                            },
                            ambient: {
                                intensity: 0
                            },
                            ambientCubemap: {
                                texture: 'asset/canyon.hdr',
                                exposure: 2,
                                diffuseIntensity: 1
                            }
                        },
                        viewControl: {
                            distance: 50,
                            panMouseButton: 'left',
                            rotateMouseButton: 'right'
                        },

                        itemStyle: {
                            coilor: '#333'
                            // borderColor: '#222',
                            // borderWidth: 1
                        },

                        regionHeight: 1,

                        data: regionData
                    }]
                });

            });
            window.addEventListener('resize', function () {
                chart.resize();
            });

        </script>
    </body>
</html>